mlme.c

ralink 2870 usb无线网卡 最新驱动

/*
 *************************************************************************
 * Ralink Tech Inc.
 * 5F., No.36, Taiyuan St., Jhubei City,
 * Hsinchu County 302,
 * Taiwan, R.O.C.
 *
 * (c) Copyright 2002-2007, Ralink Technology, Inc.
 *
 * This program is free software; you can redistribute it and/or modify  * 
 * it under the terms of the GNU General Public License as published by  * 
 * the Free Software Foundation; either version 2 of the License, or     * 
 * (at your option) any later version.                                   * 
 *                                                                       * 
 * This program is distributed in the hope that it will be useful,       * 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of        * 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         * 
 * GNU General Public License for more details.                          * 
 *                                                                       * 
 * You should have received a copy of the GNU General Public License     * 
 * along with this program; if not, write to the                         * 
 * Free Software Foundation, Inc.,                                       * 
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             * 
 *                                                                       * 
 *************************************************************************

	Module Name:
	mlme.c

	Abstract:

	Revision History:
	Who			When			What
	--------	----------		----------------------------------------------
	John Chang	2004-08-25		Modify from RT2500 code base
	John Chang	2004-09-06		modified for RT2600
*/

#include "rt_config.h"
#include <stdarg.h>

UCHAR	CISCO_OUI[] = {0x00, 0x40, 0x96};

UCHAR	WPA_OUI[] = {0x00, 0x50, 0xf2, 0x01};
UCHAR	RSN_OUI[] = {0x00, 0x0f, 0xac};
UCHAR	WAPI_OUI[] = {0x00, 0x14, 0x72};
UCHAR   WME_INFO_ELEM[]  = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01};
UCHAR   WME_PARM_ELEM[] = {0x00, 0x50, 0xf2, 0x02, 0x01, 0x01};
UCHAR	Ccx2QosInfo[] = {0x00, 0x40, 0x96, 0x04};
UCHAR   RALINK_OUI[]  = {0x00, 0x0c, 0x43};
UCHAR   BROADCOM_OUI[]  = {0x00, 0x90, 0x4c};
UCHAR   WPS_OUI[] = {0x00, 0x50, 0xf2, 0x04};
#ifdef CONFIG_STA_SUPPORT
#ifdef DOT11_N_SUPPORT
UCHAR	PRE_N_HT_OUI[]	= {0x00, 0x90, 0x4c};
#endif // DOT11_N_SUPPORT //
#endif // CONFIG_STA_SUPPORT //

UCHAR RateSwitchTable[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x11, 0x00,  0,  0,  0,						// Initial used item after association
    0x00, 0x00,  0, 40, 101,
    0x01, 0x00,  1, 40, 50,
    0x02, 0x00,  2, 35, 45,
    0x03, 0x00,  3, 20, 45,
    0x04, 0x21,  0, 30, 50,
    0x05, 0x21,  1, 20, 50,
    0x06, 0x21,  2, 20, 50,
    0x07, 0x21,  3, 15, 50,
    0x08, 0x21,  4, 15, 30,
    0x09, 0x21,  5, 10, 25,
    0x0a, 0x21,  6,  8, 25,
    0x0b, 0x21,  7,  8, 25,
    0x0c, 0x20, 12,  15, 30,
    0x0d, 0x20, 13,  8, 20,
    0x0e, 0x20, 14,  8, 20,
    0x0f, 0x20, 15,  8, 25,
    0x10, 0x22, 15,  8, 25,
    0x11, 0x00,  0,  0,  0,
    0x12, 0x00,  0,  0,  0,
    0x13, 0x00,  0,  0,  0,
    0x14, 0x00,  0,  0,  0,
    0x15, 0x00,  0,  0,  0,
    0x16, 0x00,  0,  0,  0,
    0x17, 0x00,  0,  0,  0,
    0x18, 0x00,  0,  0,  0,
    0x19, 0x00,  0,  0,  0,
    0x1a, 0x00,  0,  0,  0,
    0x1b, 0x00,  0,  0,  0,
    0x1c, 0x00,  0,  0,  0,
    0x1d, 0x00,  0,  0,  0,
    0x1e, 0x00,  0,  0,  0,
    0x1f, 0x00,  0,  0,  0,
};

UCHAR RateSwitchTable11B[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x04, 0x03,  0,  0,  0,						// Initial used item after association
    0x00, 0x00,  0, 40, 101,
    0x01, 0x00,  1, 40, 50,
    0x02, 0x00,  2, 35, 45,
    0x03, 0x00,  3, 20, 45,
};

UCHAR RateSwitchTable11BG[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0a, 0x00,  0,  0,  0,						// Initial used item after association
    0x00, 0x00,  0, 40, 101,
    0x01, 0x00,  1, 40, 50,
    0x02, 0x00,  2, 35, 45,
    0x03, 0x00,  3, 20, 45,
    0x04, 0x10,  2, 20, 35,
    0x05, 0x10,  3, 16, 35,
    0x06, 0x10,  4, 10, 25,
    0x07, 0x10,  5, 16, 25,
    0x08, 0x10,  6, 10, 25,
    0x09, 0x10,  7, 10, 13,
};

UCHAR RateSwitchTable11G[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x08, 0x00,  0,  0,  0,						// Initial used item after association
    0x00, 0x10,  0, 20, 101,
    0x01, 0x10,  1, 20, 35,
    0x02, 0x10,  2, 20, 35,
    0x03, 0x10,  3, 16, 35,
    0x04, 0x10,  4, 10, 25,
    0x05, 0x10,  5, 16, 25,
    0x06, 0x10,  6, 10, 25,
    0x07, 0x10,  7, 10, 13,
};

#ifdef DOT11_N_SUPPORT
UCHAR RateSwitchTable11N1S[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0c, 0x0a,  0,  0,  0,						// Initial used item after association
    0x00, 0x00,  0, 40, 101,
    0x01, 0x00,  1, 40, 50,
    0x02, 0x00,  2, 25, 45,
    0x03, 0x21,  0, 20, 35,
    0x04, 0x21,  1, 20, 35,
    0x05, 0x21,  2, 20, 35,
    0x06, 0x21,  3, 15, 35,
    0x07, 0x21,  4, 15, 30,
    0x08, 0x21,  5, 10, 25,
    0x09, 0x21,  6,  8, 14,
    0x0a, 0x21,  7,  8, 14,
    0x0b, 0x23,  7,  8, 14,
};

UCHAR RateSwitchTable11N2S[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0e, 0x0c,  0,  0,  0,						// Initial used item after association
    0x00, 0x00,  0, 40, 101,
    0x01, 0x00,  1, 40, 50,
    0x02, 0x00,  2, 25, 45,
    0x03, 0x21,  0, 20, 35,
    0x04, 0x21,  1, 20, 35,
    0x05, 0x21,  2, 20, 35,
    0x06, 0x21,  3, 15, 35,
    0x07, 0x21,  4, 15, 30,
    0x08, 0x20, 11, 15, 30,
    0x09, 0x20, 12, 15, 30,
    0x0a, 0x20, 13,  8, 20,
    0x0b, 0x20, 14,  8, 20,
    0x0c, 0x20, 15,  8, 25,
    0x0d, 0x22, 15,  8, 15,
};

UCHAR RateSwitchTable11N3S[] = {
// Item No.	Mode	Curr-MCS	TrainUp	TrainDown	// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0b, 0x00,  0,  0,  0,	// 0x0a, 0x00,  0,  0,  0,      // Initial used item after association
    0x00, 0x21,  0, 30, 101,
    0x01, 0x21,  1, 20, 50,
    0x02, 0x21,  2, 20, 50,
    0x03, 0x21,  3, 15, 50,
    0x04, 0x21,  4, 15, 30,
    0x05, 0x20, 11, 15, 30,	// Required by System-Alan @ 20080812 
    0x06, 0x20, 12, 15, 30,	// 0x05, 0x20, 12, 15, 30,
    0x07, 0x20, 13,  8, 20,	// 0x06, 0x20, 13,  8, 20,
    0x08, 0x20, 14,  8, 20,	// 0x07, 0x20, 14,  8, 20,
    0x09, 0x20, 15,  8, 25,	// 0x08, 0x20, 15,  8, 25,
    0x0a, 0x22, 15,  8, 25,	// 0x09, 0x22, 15,  8, 25,
};

UCHAR RateSwitchTable11N2SForABand[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0b, 0x09,  0,  0,  0,						// Initial used item after association
    0x00, 0x21,  0, 30, 101,
    0x01, 0x21,  1, 20, 50,
    0x02, 0x21,  2, 20, 50,
    0x03, 0x21,  3, 15, 50,
    0x04, 0x21,  4, 15, 30,
    0x05, 0x21,  5, 15, 30,
    0x06, 0x20, 12,  15, 30,
    0x07, 0x20, 13,  8, 20,
    0x08, 0x20, 14,  8, 20,
    0x09, 0x20, 15,  8, 25,
    0x0a, 0x22, 15,  8, 25,
};

UCHAR RateSwitchTable11N3SForABand[] = { // 3*3
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0b, 0x09,  0,  0,  0,						// Initial used item after association
    0x00, 0x21,  0, 30, 101,
    0x01, 0x21,  1, 20, 50,
    0x02, 0x21,  2, 20, 50,
    0x03, 0x21,  3, 15, 50,
    0x04, 0x21,  4, 15, 30,
    0x05, 0x21,  5, 15, 30,
    0x06, 0x20, 12,  15, 30,
    0x07, 0x20, 13,  8, 20,
    0x08, 0x20, 14,  8, 20,
    0x09, 0x20, 15,  8, 25,
    0x0a, 0x22, 15,  8, 25,
};

UCHAR RateSwitchTable11BGN1S[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0c, 0x0a,  0,  0,  0,						// Initial used item after association
    0x00, 0x00,  0, 40, 101,
    0x01, 0x00,  1, 40, 50,
    0x02, 0x00,  2, 25, 45,
    0x03, 0x21,  0, 20, 35,
    0x04, 0x21,  1, 20, 35,
    0x05, 0x21,  2, 20, 35,
    0x06, 0x21,  3, 15, 35,
    0x07, 0x21,  4, 15, 30,
    0x08, 0x21,  5, 10, 25,
    0x09, 0x21,  6,  8, 14,
    0x0a, 0x21,  7,  8, 14,
    0x0b, 0x23,  7,  8, 14,
};

UCHAR RateSwitchTable11BGN2S[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0e, 0x0c,  0,  0,  0,						// Initial used item after association
    0x00, 0x00,  0, 40, 101,
    0x01, 0x00,  1, 40, 50,
    0x02, 0x00,  2, 25, 45,
    0x03, 0x21,  0, 20, 35,
    0x04, 0x21,  1, 20, 35,
    0x05, 0x21,  2, 20, 35,
    0x06, 0x21,  3, 15, 35,
    0x07, 0x21,  4, 15, 30,
    0x08, 0x20, 11, 15, 30,
    0x09, 0x20, 12, 15, 30,
    0x0a, 0x20, 13,  8, 20,
    0x0b, 0x20, 14,  8, 20,
    0x0c, 0x20, 15,  8, 25,
    0x0d, 0x22, 15,  8, 15,
};

UCHAR RateSwitchTable11BGN3S[] = { // 3*3
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0a, 0x00,  0,  0,  0,						// Initial used item after association
    0x00, 0x21,  0, 30,101,	//50
    0x01, 0x21,  1, 20, 50,
    0x02, 0x21,  2, 20, 50,
    0x03, 0x21,  3, 20, 50,
    0x04, 0x21,  4, 15, 50,
    0x05, 0x20, 20, 15, 30,
    0x06, 0x20, 21,  8, 20,
    0x07, 0x20, 22,  8, 20,
    0x08, 0x20, 23,  8, 25,
    0x09, 0x22, 23,  8, 25,
};

UCHAR RateSwitchTable11BGN2SForABand[] = {
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0b, 0x09,  0,  0,  0,						// Initial used item after association
    0x00, 0x21,  0, 30,101,	//50
    0x01, 0x21,  1, 20, 50,
    0x02, 0x21,  2, 20, 50,
    0x03, 0x21,  3, 15, 50,
    0x04, 0x21,  4, 15, 30,
    0x05, 0x21,  5, 15, 30,
    0x06, 0x20, 12, 15, 30,
    0x07, 0x20, 13,  8, 20,
    0x08, 0x20, 14,  8, 20,
    0x09, 0x20, 15,  8, 25,
    0x0a, 0x22, 15,  8, 25,
};

UCHAR RateSwitchTable11BGN3SForABand[] = { // 3*3
// Item No.   Mode   Curr-MCS   TrainUp   TrainDown		// Mode- Bit0: STBC, Bit1: Short GI, Bit4,5: Mode(0:CCK, 1:OFDM, 2:HT Mix, 3:HT GF)
    0x0c, 0x09,  0,  0,  0,						// Initial used item after association
    0x00, 0x21,  0, 30,101,	//50
    0x01, 0x21,  1, 20, 50,
    0x02, 0x21,  2, 20, 50,
    0x03, 0x21,  3, 15, 50,
    0x04, 0x21,  4, 15, 30,
    0x05, 0x21,  5, 15, 30,
    0x06, 0x21, 12, 15, 30,
    0x07, 0x20, 20, 15, 30,
    0x08, 0x20, 21,  8, 20,
    0x09, 0x20, 22,  8, 20,
    0x0a, 0x20, 23,  8, 25,
    0x0b, 0x22, 23,  8, 25,
};
#endif // DOT11_N_SUPPORT //


extern UCHAR	 OfdmRateToRxwiMCS[];
// since RT61 has better RX sensibility, we have to limit TX ACK rate not to exceed our normal data TX rate.
// otherwise the WLAN peer may not be able to receive the ACK thus downgrade its data TX rate
ULONG BasicRateMask[12]				= {0xfffff001 /* 1-Mbps */, 0xfffff003 /* 2 Mbps */, 0xfffff007 /* 5.5 */, 0xfffff00f /* 11 */,
									  0xfffff01f /* 6 */	 , 0xfffff03f /* 9 */	  , 0xfffff07f /* 12 */ , 0xfffff0ff /* 18 */,
									  0xfffff1ff /* 24 */	 , 0xfffff3ff /* 36 */	  , 0xfffff7ff /* 48 */ , 0xffffffff /* 54 */};

UCHAR BROADCAST_ADDR[MAC_ADDR_LEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
UCHAR ZERO_MAC_ADDR[MAC_ADDR_LEN]  = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};

// e.g. RssiSafeLevelForTxRate[RATE_36]" means if the current RSSI is greater than 
//		this value, then it's quaranteed capable of operating in 36 mbps TX rate in 
//		clean environment.
//								  TxRate: 1   2   5.5	11	 6	  9    12	18	 24   36   48	54	 72  100
CHAR RssiSafeLevelForTxRate[] ={  -92, -91, -90, -87, -88, -86, -85, -83, -81, -78, -72, -71, -40, -40 };

UCHAR  RateIdToMbps[]	 = { 1, 2, 5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 72, 100};
USHORT RateIdTo500Kbps[] = { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, 144, 200};

UCHAR  SsidIe	 = IE_SSID;
UCHAR  SupRateIe = IE_SUPP_RATES;
UCHAR  ExtRateIe = IE_EXT_SUPP_RATES;
#ifdef DOT11_N_SUPPORT
UCHAR  HtCapIe = IE_HT_CAP;
UCHAR  AddHtInfoIe = IE_ADD_HT;
UCHAR  NewExtChanIe = IE_SECONDARY_CH_OFFSET;
#ifdef DOT11N_DRAFT3
UCHAR  ExtHtCapIe = IE_EXT_CAPABILITY;
#endif // DOT11N_DRAFT3 //
#endif // DOT11_N_SUPPORT //
UCHAR  ErpIe	 = IE_ERP;
UCHAR  DsIe 	 = IE_DS_PARM;
UCHAR  TimIe	 = IE_TIM;
UCHAR  WpaIe	 = IE_WPA;
UCHAR  Wpa2Ie	 = IE_WPA2;
UCHAR  IbssIe	 = IE_IBSS_PARM;
UCHAR  Ccx2Ie	 = IE_CCX_V2;
UCHAR  WapiIe	 = IE_WAPI;

extern UCHAR	WPA_OUI[];

UCHAR	SES_OUI[] = {0x00, 0x90, 0x4c};

UCHAR	ZeroSsid[32] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};


/*
	==========================================================================
	Description:
		initialize the MLME task and its data structure (queue, spinlock, 
		timer, state machines).

	IRQL = PASSIVE_LEVEL

	Return:
		always return NDIS_STATUS_SUCCESS

	==========================================================================
*/
NDIS_STATUS MlmeInit(
	IN PRTMP_ADAPTER pAd) 
{
	NDIS_STATUS Status = NDIS_STATUS_SUCCESS;

	DBGPRINT(RT_DEBUG_TRACE, ("--> MLME Initialize\n"));

	do 
	{
		Status = MlmeQueueInit(&pAd->Mlme.Queue);
		if(Status != NDIS_STATUS_SUCCESS) 
			break;

		pAd->Mlme.bRunning = FALSE;
		NdisAllocateSpinLock(&pAd->Mlme.TaskLock);

#ifdef CONFIG_STA_SUPPORT
		IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
		{
			BssTableInit(&pAd->ScanTab);

			// init STA state machines
			AssocStateMachineInit(pAd, &pAd->Mlme.AssocMachine, pAd->Mlme.AssocFunc);
			AuthStateMachineInit(pAd, &pAd->Mlme.AuthMachine, pAd->Mlme.AuthFunc);
			AuthRspStateMachineInit(pAd, &pAd->Mlme.AuthRspMachine, pAd->Mlme.AuthRspFunc);
			SyncStateMachineInit(pAd, &pAd->Mlme.SyncMachine, pAd->Mlme.SyncFunc);

#ifdef QOS_DLS_SUPPORT
			DlsStateMachineInit(pAd, &pAd->Mlme.DlsMachine, pAd->Mlme.DlsFunc);
#endif // QOS_DLS_SUPPORT //



			// Since we are using switch/case to implement it, the init is different from the above 
			// state machine init
			MlmeCntlInit(pAd, &pAd->Mlme.CntlMachine, NULL);
		}
#endif // CONFIG_STA_SUPPORT //